Abstract

More than 6 million couples in the United States are infertile. Ap proximately one in five women in these couples seeks medical attention each year for infertility, whereas men are referred for evaluation for a male factor only 20% of the time. In 30% of infertile couples, a male factor is solely responsible, and, in another 20%, a male and female factor can be identified. Currently, male factor infertility is underdiagnosed and undertreated. Evaluation of male fertility should be a routine part of the evaluation of an infertile couple.